Tastad'i bi-qiyamiha. However, the preposition bi- isnot
ordinarily used with this verbal form. The vocalization qiyam
isindicated in C; other­wise, one might even think
of quyyam (like qawamah, which Ibn Khaldun uses, a
plural of qa'im):"which require supervisors."

De Slane reads tustad'a bi-qiyamiha and
translates: "All these are products that exist only because of
the value attached to them," but qiyam does not have this
meaning in the context, and the translation in general does not
fit into the context.

There remains another possibility, namely, to
translate: "which are required with the help of their prices,"
meaning which are required and for which the prices they deserve
must be paid.